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Can endoscopic ultrasonography (EUS) improve the accuracy of clinical T staging by computed tomography (CT) for gastric cancer?

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Author(s)
Kyung-Goo LeeCheong-Il ShinSang Gyun KimJeongmin ChoiSeung-Young OhYoung-Gil SonYun-Suhk SuhSeong-Ho KongHyuk-Joon LeeSe Hyung KimKuhn Uk LeeWoo Ho KimHan-Kwang Yang
Keimyung Author(s)
Son, Young Gil
Department
Dept. of Surgery (외과학)
Journal Title
Eur J Surg Oncol
Issued Date
2021
Volume
47
Issue
8
Keyword
Computed tomographyEndoscopic ultrasonographyGastric cancerClinical T staging
Abstract
Introduction:
With the introduction of new therapeutic options for gastric cancer treatment, more precise preoperative staging of gastric cancer is needed. The purpose of this study was to evaluate the role of endoscopic ultrasonography (EUS) for improving the accuracy of clinical T staging by computed tomography (CT) for gastric cancer.

Materials and methods:
A total of 2636 patients underwent stomach protocol CT (S-CT) and EUS, followed by gastrectomy for primary gastric adenocarcinoma between September 2012 and February 2018 at Seoul National University Hospital. The results of preoperative S-CT and EUS were compared to the postoperative pathologic staging.

Results:
The overall accuracy of S-CT and EUS for T staging were 69.4% and 70.4%, respectively. When T staging was divided into T1-2 and T3-4 for clinically advanced gastric cancer (AGC), the positive predictive value for T3-4 using S-CT, EUS, and a combination of both modalities was 73.8%, 79.3%, and 85.6%, respectively. In 114 cases of indeterminate lesions between cT1 and cT2 by S-CT, EUS had a better prediction rate than the final decision based on endoscopy or the agreement between the two experts (Match rate: EUS vs. final decision, 69.3% vs. 58.8%).

Conclusion:
EUS can be a complementary diagnostic tool to clinical T staging of gastric cancer by CT for selecting T3-4 lesion.
Keimyung Author(s)(Kor)
손영길
Publisher
School of Medicine (의과대학)
Citation
Kyung-Goo Lee et al. (2021). Can endoscopic ultrasonography (EUS) improve the accuracy of clinical T staging by computed tomography (CT) for gastric cancer? Eur J Surg Oncol, 47(8), 1969–1975. doi: 10.1016/j.ejso.2021.02.031
Type
Article
ISSN
1532-2157
Source
https://www.clinicalkey.com/#!/content/playContent/1-s2.0-S0748798321001256
DOI
10.1016/j.ejso.2021.02.031
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/43744
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Surgery (외과학)
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